| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 22°F | 41°F | 31°F | 2.7" |
| February | 22°F | 43°F | 32°F | 2.6" |
| March | 33°F | 57°F | 44°F | 4.4" |
| April | 43°F | 69°F | 55°F | 5.1" |
| May | 52°F | 77°F | 64°F | 4.4" |
| June | 61°F | 85°F | 73°F | 4.7" |
| July | 64°F | 87°F | 75°F | 3.7" |
| August | 62°F | 87°F | 74°F | 2.8" |
| September | 55°F | 81°F | 67°F | 3.8" |
| October | 43°F | 69°F | 55°F | 3.8" |
| November | 32°F | 57°F | 43°F | 3.1" |
| December | 27°F | 46°F | 36°F | 4.1" |
| Index | Lake Lakengren | Ohio | National |
| Air quality index | 6 | 40 | 42 |
| Pollution index | 1,369,080 | 4,472,386 | 2,726,193 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 364 |
| Days with moderate air quality | |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| College Corner, OH | 276 | 6 | 88.0% |
| Eaton, OH | 8,154 | 6 | 88.0% |
| New Paris, OH | 1,418 | 6 | 88.0% |
| Darrtown, OH | 550 | 6 | 88.0% |
| Somerville, OH | 304 | 6 | 88.0% |
| Lake Lakengren, OH | 3,437 | 6 | 88.0% |
| City | Population | Air Quality Index | National Avg. |
| Moss Beach, CA | 3,436 | 43 | 14.0% |
| WestLake-Gladstone, MB | 3,436 | n/a | |
| Humboldt Hill, CA | 3,435 | 27 | 46.0% |
| Piney Point Village, TX | 3,435 | 52 | 4.0% |
| Locust, NC | 3,439 | 49 | 2.0% |
| Lake Lakengren, OH | 3,437 | 6 | 88.0% |
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